The VMAL Pneumatic Control Ball Valve 3 Way is a pneumatically actuated, stainless-steel T-shaped three-way flanged ball valve designed for controlling flow through three-way piping systems. The catalog specifies a flanged connection, a nominal pressure of 1.6 MPa, and pneumatic air supply pressure of 0.4–0.75 MPa.
The valve is available with different stainless-steel and sealing configurations, including SUS304 or SUS316 stainless steel combined with PTFE or PPL sealing materials. It is designed according to GB/T12237-2007, with the flange connection following GB/T9112-2000.
VMAL Pneumatic Three-Way Ball Valve
The VMAL Pneumatic Control Ball Valve 3 Way uses a T-shaped three-way ball valve design with a pneumatic actuator mounted above the valve body. The three-way construction allows the valve to control the connection between different flow paths in a piping system.
The catalog identifies the product as a pneumatic stainless steel T-shaped three-way flanged ball valve. The valve uses a flange connection and is designed to GB/T12237-2007, while the flange dimensions follow GB/T9112-2000.
Different material configurations are provided for the sealing and stainless-steel components:
- PTFE + SUS304
- PPL + SUS304
- PTFE + SUS316
- PPL + SUS316
This allows the valve configuration to be selected according to the required sealing material and stainless-steel grade specified for the application.
Construction and Materials
The VMAL three-way pneumatic ball valve combines a pneumatic actuator with a stainless-steel valve assembly. The catalog specifies SUS304 / SUS316L for the valve body and ball, while the valve shaft is also available in SUS304 / SUS316L.
| Component | Main Material |
|---|---|
| Pneumatic actuator | — |
| Air connection | Copper plating |
| Octagonal bushing | Powder metallurgy |
| Gland screw | SUS304 |
| Gland | SUS304 / SUS316 |
| Nut | SUS304 |
| Metal gasket | SUS304 |
| Padding | PTFE / PPL |
| Valve shaft | SUS304 / SUS316L |
| Valve body | SUS304 / SUS316L |
| Combination screw | SUS304 |
| Valve side cover | SUS304 / SUS316 |
| Valve side cover nut | SUS304 |
| Screw | SUS304 |
| Valve side cover seal | PTFE / PPL |
| Rear cover | SUS304 / SUS316L |
| Valve seal | PTFE |
| Ball | SUS304 / SUS316L |
The catalog’s exploded drawing shows the main valve assembly, including the pneumatic actuator, gland, shaft, valve body, side covers, ball, seals, gaskets, and fastening components.
Pneumatic Actuator and Operating Specifications
The VMAL Pneumatic Control Ball Valve 3 Way is operated by a pneumatic actuator. The catalog specifies an air source pressure of 0.4–0.75 MPa. Different actuator sizes are matched to the valve sizes shown in the dimensional table.
| Parameter | Specification |
|---|---|
| Valve type | Pneumatic stainless-steel T-shaped three-way flanged ball valve |
| Connection form | Flange |
| Nominal pressure | 1.6 MPa |
| Air source pressure | 0.4–0.75 MPa |
| Applicable temperature | -20 to +150°C / -18 to +260°C |
| Watertight seal test pressure | 1.76 MPa |
| Air-tight seal test pressure | 0.6 MPa |
| Connection standard | GB/T9112-2000 |
| Design standard | GB/T12237-2007 |
The catalog specifies two applicable temperature ranges, -20 to +150°C and -18 to +260°C, associated with the different sealing/material configurations. The appropriate configuration should therefore be selected according to the required operating temperature.
The 1.6 MPa value is the specified nominal pressure, while 1.76 MPa and 0.6 MPa are the stated watertight and air-tight seal test pressures. These values should be considered separately when checking the valve against system requirements.
Size Range and Dimensions
The VMAL Pneumatic Control Ball Valve 3 Way is shown in the catalog in sizes from DN25 to DN100. The dimensional table provides the corresponding actuator type and valve dimensions for each size.
| Size | Actuator | L (mm) | T (mm) | S (mm) | N (mm) | Q (mm) | H (mm) | E | F (mm) | D (mm) | R (mm) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| DN25 | AT75 | 186 | 180 | 95 | 20 | 99.5 | 62 | 4×Φ14 | 85 | 115 | 24 |
| DN32 | AT75 | 186 | 200 | 95 | 20 | 99.5 | 72 | 4×Φ18 | 100 | 135 | 32 |
| DN40 | AT83 | 212 | 220 | 103 | 20 | 108.7 | 78 | 4×Φ18 | 110 | 145 | 39 |
| DN50 | AT92 | 262 | 240 | 108.5 | 20 | 116.5 | 86 | 4×Φ18 | 125 | 160 | 49 |
| DN65 | AT105 | 268 | 260 | 121.5 | 20 | 133 | 102 | 4×Φ18 | 145 | 180 | 64 |
| DN80 | AT125 | 301 | 280 | 142 | 30 | 155 | 115 | 8×Φ18 | 160 | 192 | 78 |
| DN100 | AT140 | 390 | 320 | 152 | 30 | 172 | 137 | 8×Φ18 | 180 | 215 | 98 |
The catalog identifies the dimensional code with 1.6 MPa pressure and dimensions in millimeters. It also notes that the actuator matching is provided for reference and recommends contacting the manufacturer for other diameters or sizes.
Applications and Selection
The VMAL Pneumatic Control Ball Valve 3 Way is suitable for piping applications requiring a pneumatically operated T-shaped three-way ball valve with a flanged connection. Selection should be based on the required valve size, material configuration, sealing material, operating temperature, pneumatic air pressure, and flange dimensions.
When selecting the valve, check the following parameters:
- Valve configuration: T-shaped three-way ball valve
- Actuation: Pneumatic
- Connection: Flange
- Nominal pressure: 1.6 MPa
- Air source pressure: 0.4–0.75 MPa
- Size range: DN25–DN100
- Body material: SUS304 / SUS316L
- Ball material: SUS304 / SUS316L
- Valve shaft: SUS304 / SUS316L
- Sealing options: PTFE / PPL
- Flange standard: GB/T9112-2000
- Design standard: GB/T12237-2007
The valve size should also be matched with the appropriate pneumatic actuator and installation dimensions. The catalog provides actuator matching from AT75 through AT140 for the DN25–DN100 range and notes that these matches are for reference.
For applications requiring a particular combination of SUS304/SUS316 stainless steel and PTFE/PPL sealing, the material configuration should be confirmed before ordering to ensure it corresponds with the required operating conditions.
Contact ValveLink Europe for the VMAL Pneumatic Control Ball Valve 3 Way and provide the required size, material configuration, operating temperature, pneumatic air pressure, and flange connection details for selection and quotation.
